The feasibility study of manufacture method for "Ideal Material Structure Hot Forging Die" is expressed.
在第四章，对理想材料结构热锻模具的制造方法进行可行性研究讨论。
In this thesis, the author systemically study on the asphalt pavement design technology of the permafrost area from the material and the structure.
本文从路面材料和结构两方面，对多年冻土地区沥青路面设计技术进行系统深入的研究。
The paper discusses high power pulse transformer iron-cores structure data and its material selection principle, it is a necessary theoretical study for optimizing design of transformer.
文章探讨了高功率脉冲变压器铁心的结构参数及其材料选择原则，是优化变压器设计的必要的理论研究。
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